The LiftMaster 41A3589-2 Full 10' Belt Assembly is a genuine OEM replacement drive belt engineered for LiftMaster and compatible Chamberlain belt‑drive garage door openers that use the T‑rail belt system configured for a 10' rail/door setup. It restores smooth, quiet operation by replacing a worn, stretched, or broken belt, maintaining the low‑noise performance belt‑drive openers are known for in residential applications. This factory assembly is designed for units equipped with the appropriate 10' rail or extension kit and is not universal; verify that your opener uses a T‑rail belt system and is specified for a 10' configuration before ordering.
Installation typically involves disconnecting power, releasing the trolley, routing the belt around the motor sprocket and idler pulley, attaching the belt to the trolley, and adjusting belt tension per the opener’s service manual. After installation, reprogram travel limits and force settings and perform a safety reversal test to meet UL requirements. For accurate fitment, match the part number 41A3589-2 with your opener’s parts list or service documentation; this assembly is intended for select LiftMaster/Chamberlain belt‑drive models that support a 10' rail and T‑rail configuration.
Compatible with LiftMaster 10' belt drive models: 1270, 1280 and 1280R